Home / 66,921.12-92,351.30-38,626.79

Finding the Fourth Proportional to 66,921.12, 92,351.30 and 38,626.79

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Solution

The fourth proportional to 66,921.12, 92,351.30 and 38,626.79 is: 53,305.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,921.12 : 92,351.30 = 38,626.79 : x
  2. Step 2: Convert to fraction form
    66,921.12/92,351.30 = 38,626.79/x
  3. Step 3: Cross multiply
    66,921.12x = 92,351.30 × 38,626.79
  4. Step 4: Simplify right side
    66,921.12x = 3,567,233,616.44
  5. Step 5: Solve for x
    x = 3,567,233,616.44/66,921.12
  6. Step 6: Final answer
    x = 53,305.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.